Hagerup-Jenssen M, Kongsrud S, Riise OR. Suboptimal MMR2 vaccine coverage in six counties in Norway detected through the national immunisation registry, April 2014 to April 2017. Eurosurveillance 2017;22(17):39-44.

Irgens LM. Creation and growth of the medical birth registry; some observations and reflections from an old man with experience. Norsk Epidemiologi 2017;27(1-2):3-7.